function getHTTPObject(){
    if(typeof XMLHttpRequest == "undefined")
        XMLHttpRequest = function(){
            try{return new ActiveXObject("Msxml2.XMLHTTP.6.0");}
            catch(e){}
            try{return new ActiveXObject("Msxml2.XMLHTTP.3.0");}
            catch(e){}
            try{return new ActiveXObject("Msxml2");}
            catch(e){}
            return false;
        }
        return new XMLHttpRequest();
}